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Chemistry

Chemistry
The gas used for artificial ripening of green fruit is

ethylene
acetylene
ethane
carbon dioxide

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Chemistry
The laws of electrolysis are given by

Arrhenius
Faraday
Lewis
Ostwald

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Chemistry
For a spontaneous chemical process, the free energy change is

Negative
Zero
Depends on whether the reaction is exothermic or endothermic
Positive

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Chemistry
Which of the following is usually not an air-pollutant?

Carbon dioxide
Sulphur dioxide
Nitrous oxide
Hydrocarbons

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Chemistry
Which of the following is not a precious/semi-precious stone?

Pearl
Emerald
Ruby
Sapphire

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Chemistry
If water smells bad, then that odour can be removed by adding

Deactivated nitrogen
Bleach
Activated carbon
Alum

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MORE MCQ ON Chemistry

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